What Size Are Magnetic Business Cards?

Magnetic business cards combine utility and branding — sticking around longer on fridges, filing cabinets, or toolboxes.

The standard size for magnetic business cards is 3.5" x 2", but custom sizes and thicknesses vary. Choosing the right dimensions directly impacts visibility, cost, and usability.

What Are Magnetic Business Cards?

Magnetic business cards are thin magnets printed with your business details, often doubling as both contact reminders and practical tools.
Common uses include:¹

• Service reminders for plumbers, electricians, HVAC, or repair services
• Fridge magnets for restaurants, salons, or delivery services
• Branded giveaways that double as functional objects

Why they work: Unlike paper cards that often get lost, magnets “stick around” — literally. That longevity boosts brand recall and repeat business.

Standard Magnetic Business Card Sizes

The most popular option is the same as a traditional business card: 3.5” x 2”.

Format 2	Dimensions (inches)	Best Use Case
Standard	3.5” x 2”	Fits wallets & card holders
Square	2” x 2”	Creative layouts, minimal design
Oversized	3.5” x 4”	Extra space for calendars, menus
Mini	3” x 1”	Subtle branding, quick reference

Pro Insight: Standard size works best for professional networking, while oversized options make sense for promotional campaigns where the magnet is meant to serve as a mini-flyer or calendar.

How Thick Are Magnetic Business Cards?

Thickness affects durability, adhesion, and perceived quality.

Thickness	Approx. mm	Ideal Use
Light	0.3mm	Budget campaigns, lightweight promos
Standard	0.4–0.5mm	General business use, fridge magnets
Heavy-duty	0.6mm+	Outdoor signage, garage/toolbox magnets

Industry Note: For fridge and office use, 0.5mm thickness is the sweet spot — cost-effective yet durable enough to resist curling.

What Size Should You Choose?

The “right” size depends on your goal:

• Adhesion: Small, thin magnets may peel off over time
• Design space: Bigger cards = more room for branding or calendars
• Portability: Standard 3.5” x 2” fits wallets and business card cases

Best all-rounder: 3.5” x 2”
For maximum impact: Oversized (3.5” x 4”) with added value like a calendar or checklist

Custom Magnetic Business Card Design Tips

Magnetic business card designs work best when simple, bold, and functional — keep text within safe margins, use high-contrast colors, and add a QR code for easy contact or booking.

Design Do’s:

• Keep all text/logos inside a safe zone margin (0.125")
• Use high-contrast colors for readability
• Add a QR code for appointments, menus, or booking links
• Consider vertical layouts for a modern edge

Design Tip 3	Why It Matters
Safe zone margins	Prevents design cut-off during trimming
Simple layouts	Avoids clutter on small surfaces
Matte or gloss finish	Protects print, enhances visibility

Pro Insight: Think of your magnet as a mini-billboard. Simplicity sells.

Can Magnetic Cards Be Printed Double-Sided?

Typically, no— the back is solid magnet. But there are alternatives:

• Stick to single-sided, add a QR code for extra info
• Use laminated paper adhered to a magnet for double-sided printing (but this reduces strength)

Recommendation: Keep the magnet simple. Push extra details to your website or booking page.

Shipping, Storage & Use Tips

Even though they’re durable, proper storage preserves their shape:

• Stack with paper backing between layers to prevent sticking
• Store flat to avoid warping
• Keep away from credit cards, phones, and drives (magnets can cause interference)

FAQ

Q: Can magnetic business cards be die-cut into custom shapes?

A: Yes, but costs are higher. Works great for industries wanting unique branding (e.g., pizza-shaped magnets for restaurants).

Q: Is 3.5" x 2" visible enough on a fridge?

A: Absolutely. The key is bold, eye-catching design.

Q: Do thicker magnets last longer?

A: Yes. They resist bending, adhere better, and feel more premium.

Q: Can I write on magnetic business cards?

A: Yes, with a matte finish and a permanent marker.

Conclusion

Standard size = 3.5” x 2” — professional, portable, and universally recognized
Opt for 0.5mm thickness to balance cost and durability
Use design wisely: clear fonts, strong colors, and QR codes enhance effectiveness
Store flat with backing sheets to maintain quality